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Knowledge document #3391
FRITZ!Smart Control 350
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Using open window detection with FRITZ!Smart Control 350

To save energy, you can use the door/window contact FRITZ!Smart Control 350 for open window detection in combination with your radiator controls. The radiator control keeps the valve closed as long as the door/window contact signals that the window is "open". The symbol is shown on the display of the radiator control and then the antifreeze function is enabled:

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

1 Using a FRITZ! door/window contact for open window detection

  1. Click "Smart Home" in the FRITZ!Box user interface.
  2. Click "Devices and Groups" in the "Smart Home" menu.
  3. Click the (Edit) button for the radiator control you want to regulate using the door/window contact. With FRITZ!OS 8, click the (Edit) button for the door/window contact.
  4. Select the desired radiator control under "Open window detection for radiator control".
  5. Click "Apply" to save the settings.

To save energy and minimize DECT radiation, FRITZ! radiator controls only communicate with the FRITZ!Box at certain intervals. Therefore, the FRITZ! door/window contact may not notify the radiator control that the door or window was opened until about three minutes later, so the radiator control does not react until then.



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